document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=933215>Question 933215</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please can someone help me I have been trying for hours!\r<BR>\n" );
document.write( "\n" );
document.write( "A college entrance exam has a mean of 1400 and standard deviation of 200. A college will only accept the top 2.5% or higher. What is the lowest score they need on the exam? \r<BR>\n" );
document.write( "\n" );
document.write( "Can someone please help and show the formula! I would appreciate it so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #566680 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=566680\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean of 1400 and a standard deviation of 200. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+blue%28x+-+1400%29%2Fblue%28200%29 ALIGN=MIDDLE  ALT=\"z+=+blue%28x+-+1400%29%2Fblue%28200%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >    <BR>\n" );
document.write( " A college will only take applicants in the top 2.5% or higher. <BR>\n" );
document.write( " What is the lowest score they would need on the entrance exam<BR>\n" );
document.write( " 200z + 1400 = x<BR>\n" );
document.write( "z = invNorm(.975).<BR>\n" );
document.write( " invNorm(.975) = 1.96  can be found from a table or Using calculator 0r Excel  Function<BR>\n" );
document.write( ".....<BR>\n" );
document.write( " 200(invNorm(.975) + 1400 = 200(1.96) + 1400 = 1792, lowest score<BR>\n" );
document.write( ".....<BR>\n" );
document.write( "Note: 1 - .025 = .975  (z-value found...97.5% of the Area Under NOrmal curve to the left of that value.<BR>\n" );
document.write( "......<BR>\n" );
document.write( "For the normal distribution: Below:  z = 0, z = ± 1, z= ±2 , z= ±3 are plotted.  <BR>\n" );
document.write( "97.5% of the Area under the standard normal curve is to the left of z = 1.96  <BR>\n" );
document.write( "Note: z = 0 (x value: the mean) 50% of the area under the curve is to the left and 50%  to the right<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C200%2C-5%2C5%2C-.5%2C1.5%2C+graph%28400%2C200%2C-5%2C5%2C-.5%2C1.5%2C+exp%28-x%5E2%2F2%29%29%2C+green%28line%281%2C0%2C1%2Cexp%28-1%5E2%2F2%29%29%2Cline%28-1%2C0%2C-1%2Cexp%28-1%5E2%2F2%29%29%29%2Cgreen%28line%282%2C0%2C2%2Cexp%28-2%5E2%2F2%29%29%2Cline%28-2%2C0%2C-2%2Cexp%28-2%5E2%2F2%29%29%29%2Cgreen%28line%283%2C0%2C3%2Cexp%28-3%5E2%2F2%29%29%2Cline%28-3%2C0%2C-3%2Cexp%28-3%5E2%2F2%29%29%29%2Cgreen%28line%28+0%2C0%2C+0%2Cexp%280%5E2%2F2%29%29%29%2Clocate%284.8%2C-.01%2Cz%29%2Clocate%284.8%2C.2%2Cz%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "stattrek.com a great reference for statistics<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );